Heel-building machine.



J. H. RICHARDSON.

HEEL BUILDING MACHINE.

APPLICATION FILED OCT. 6| 19H.

Patented Aug. 3, 1915.

3 SHEETS-SHEET I.

COLUMBIA PIANOGIAPH CO" IMlllNmN' D. C.

J. H. RICHARDSON. HEEL BUILDINQ MACHINE. APPLICATION FILED acne. 19H.

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, QM 7W COLUMBIA PgANOuRAPH WAimNn'roN. D- c.

.l. H. RICHARDSON.

HEEL BUILDING MACHINE.

APPLICATION FILED ocT.6. 1911.

1,148,716. Patented Aug. 3,1915.

3 SHEETS-SHEET 3.

UNITED STATES PATENT QFFTQE.

JOHN H. RICHARDSON, OF SAUGUS,.MA-S SAGHUSETTS, ASSIGNOR; TO UNITED'SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

HEEL-BUILDING MACHINE.

Patented Aug. 3, 1915.

Application-'filedflctober 6, 19-131. Serial No..653,0 90.

To-all whom it mag concern:

Be it known thatLJoH-N H..RIoHA RD soN, a citizen. of the United States, residlng at? Saugus, in the county of; Essex and State.

of Massachusetts, have invented certain Imrovements in Heck-Building Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characterson the drawings indicating like parts in the severalfigures.

This invention relates toheel building. Ina-- chines, and more particularly to that typeof machine in which a plurality of lifts or pieces of leather are assembledand fastened.

tures the controlling devices for the. nail: driving mechanism have not been dependentin their operation. upon the thickness, or height, of the heel. In other words, the nail driving mechanism could be thrown into operation to fasten the heel lifts together irrespective of the height of the heel and irrespective of uniformity between the successive heels which were built,

The object of the present invention is to provide a machine which will turn out a product the uniformity of which is auto matically insured, irrespective of careless ness or lack of skill: on the part of the operative.

To this end a feature of the invention consistsin mechanism for measuring. the. height of the pile of lifts and preventing the. operation of the nail driving mechanism. if such pile is not of the proper height. A. consequence of this is that, when the machine is adjusted for building heelsof a certain height, successive heels will all be substantially the same in height. A highly desirable uniformity in the product is thus secured, independently of the. skill or care exercised by the operative. The measuring. mechanismmay comprise a member to be set, automatically or otherwise, in. accordance with the height of the heel to be built, and having arecess with which a pin, carried by a heel engaging member, is adapted. to register only when theheel is of the proper height.

Thesaid pin: may be so placed as to prevent operation of the devices for controlling operation. of. the driving mechanism when the pin is not. in position to register with the recess in the first mentioned member. recess is preferably formed to permit a small amount of. variation in the heights of heels, since it is often extremely difficult, if not impossible, tov select. lifts to form a pile of. exactly the height desired.

Another featureof the. invention comprises an improved mold in which the lifts are assembled and. which. is capable of accommodating. a largervariety of sizes andshapes of heels than. themolds previously used for this purpose. The mold. consists mainly of pivoted jawswhich are crossed and may be opened and" closed. to. conform to heels of a variety of sizes and. styles. The jaws are preferably pivoted. at points somewhat remote from. where. they engage the heel, in order to, secure a wider range of adaptabilit than. would otherwise be enjoyed.

In the following specification one mechanical embodiment of the invention will bev specifically described for the purpose of illustration, but it should be understood that the invention is not limited in its scope to the: embodiment,v described in detail, except in so far as definedby the. claims at the end of said specification.

In the drawings :.Figure 1 is a side elevation of a machine embodying the invention; Fig. 2 is a central vertical section of the machine: from front to rear; Fig. 3 is a perspective View of the upper part of the machine;,-Fig. 4: is a detail perspective view showing the constructionv and mounting of the mold jaws; and Fig. 5 is a perspective view showing a. detail of the measuring device.

The frameof the machine is designated by the reference numeral 1 0 and may be of any suitable shape and construction. Pivotally mounted within the frame 10 is a swinging arm- 12 which is constructed to swing about the pivot pin 14 as clearly shown in Fig. 2. Mounted at the upper end of the arm-12 is a pair of handles. 16. The arm 12. performs Thethe dual function of controlling the operation of the power operated mechanism of the machine and transmitting pressure to the pile of heel lifts in order tohold them securely in position while a nail ornails are being driven therethrough.

A member 18 is secured to the frame of the machine by suitable means, such as bolts 20. The upper surface of the member 18 forms the bottom of the mold in which a pile of heel lifts is assembled in the process of building a heel. Apair of crossed arms 22,

30 is held in an arm 32 by means of a set screw 34. The arm 32 is rigid with the arm 24 and consequently moves therewith. An-

other arm 36 is in rigid relation to the arm 22 and is notched at itsendjto receive the pin 80.. Inasmuch as the pivots 26,28 are stationary, the connections just described will insure that the side jaws shall always move equally and oppositely. A cam roll 38 is carried upon the under side of the arm'32 and travels in a cam path 40 formed in anenlargement 42 upon the arm 44 of a bell crank lever 46. Tothe other arm 48 of the bell crank lever is pivoted a connecting rod 50 which extends downwardly to a suitable treadle or other device to be actuated by the operative, the connecting rod being normally held in its elevated position. The "cam 40 is so formed that when the bell crank lever 46 is swung in a counter.

clockwise direction as viewed in Fig. 4, the cam roll 38 will move rearwardly; the result of this is to swing the side jaws of the heel mold toward each other through equal distances. By placing the pivots 26, 28, about which the'heel-engaging jaws swing, each upon the opposite side of the mold from its respective jaw and somewhat remote therefrom, the mold is well adapted for use with heels of a large range of sizes and shapes, since the contour of the mold cavityls maintained at a close approx1ma-' tion to that of an average heel, while the jaws are swung through considerable dis tances. j

The member 18 is recessed to receive a nail, block or die 52; said nail block being retained in position by pivoted wings 54. A slot 56 is cut in the forward portion of the nail block, forming a guideway fora V bracket 58 to which is secured the breast member 60 of the mold. A bolt 62 passing through the slot 56 may be tightened to se- "curethe breast member 60 in any desired position of adjustment forwardly or rearwardly. The breast member 60 is preferably secured to the bracket 58 by a screw or bolt 64 to the end that the said breast member may be easily removed and another of different height substituted therefor when desired. The occasion-for this arises from the fact that the breast'member of the mold is used as a gage for the height of the heel, and is the same height as the heel to be built. 3

A projection 66 extends rearwardly from the base 18 of the mold and supports a pivot 68ifor the rear end of a swinging arm 70. A presser member 72 is carried in the front end ofthe arm 70. The stem of the presser member 72 is screw-threaded, and is r'ec'eived in a' correspondingly screw-threaded portion of the arm for the purpose of permitting adjustment of the presser member within the arm. The screw threads are slotted longitudinally of the stem, as shown ward end of the arm70 and has a finger hole for the convenience of the operative in swinging the locking member about its pivot. When said member occupies-the'p'osition shown in Fig.2, its rear end lies in one of the slots 74fthus 'lockingthe presser member 72 against rotation, or in other words, securing it in adjusted position. When the locking member 7 6 is swinging into its alternative position it leaves the slot 74, thus permitting adjustment of the presser member as desired" An upwardlyextending guide member 82 forms the front end of the arm 70. A measuring slide 84 is mounted to slide up and down in thesaid guide member. A coiled spring 86 surrounding a sliding rod 88 tends.

to hold the measuring slide in its lowermost position. A measuring finger 88 adjustably held in the lower end of the measuring slide 84 by a set screw 90, is adapted to engage with the upper surface of the breast member 60 when the arm 70 is swung downwardly.

For the purpose of swinging the arm 70, a connecting rod 92 is pivoted at its forward end to said arm 94. The rear end of the connecting rod is free to slide through a block'96 carried by the swinging arm 12. A spring 98 is interposed between the block 96 and the arm 70 thus forming a yielding connection between the arm 12 and the arm 70.. It'will be obvious that as the arm 12 is wung forwardly, the arm 70 will be swung forwardly and downwardly until the pressermember 72 engages the pile of heel lifts inthe mold, when the' arm 70. will stop, the yielding connection above described permitting further forward movement of the arm 12.

Connected to the arm 12 is a link 100 having an abutment 102, which, as the arm is swung forward, engages the arm 104 of a what has been already described'it will be apparent that the starting is effected by" swinging the arm 12 forwardly= Mounted in an upper portion of the guide member 82 is a. pin 112 adapted to register with a recess 114 in the measuring slide 84.

'The in 112 is normally held out of said recess y a spring 116, and is in a position to be engaged by the front face 120 of the arm 12 as the latter is swung forwardly. The construction of the starting mechanism is such as to require that the arm 12 be swung forwardly far enough to move the pin 112 into the recess 114 before the machine is started.

The downward swing of the arm is obviously determined by the height of the pile of heel lifts in the mold, while the movement of the measuring finger 88 of the measuring slide 84 is determined by the height of the breast member 60. If the height of the heel being built is not correct according to the gage 60, the relative movement between the slide 84 and the guideway 82 will be such that the pin 112 and the recess 114 will not register, and the pin therefore can not enter the recess; this, of course, will only occur when the heel is of improper height, and under such circumstances the pin 112 will prevent the arm 12 from being swung forwardly far enough to start the machine. The recess 114 is preferably elongated sufliciently to allow a slight variation in the heights of heels, perhaps one-sixteenth of an inch.

IVhile being swung forwardly the arm 12 is held up by a roll 122 riding upon the upper side of a stiff spring 124, but after the starting of the machine the said arm is depressed through the action of the lever 15 which is actuated by a cam 126 upon the main drive shaft 128, thus applying pres sure to the heel through the presser member 72 while a nail or nails are being driven through the heel to secure the lifts together by drivers 130 actuated from the main shaft 128 through a cam 132, a connecting link 134 and toggle 136.

The breast gage 60 is stationary and rigid. In order to permit downward movement of the presser 72, after the power mechanism has been started, to apply pressure to the heel, the following construction is employed. The recess 114 is formed in a block 138- guided to slide vertically in the slide 84. The block 138 is normallyheld in its uppermost position, against a stop 140, by a spring 142, see Figs. 2 and 5. After the pin 112'has' entered the recess 114 the spring 142 will permit the block 138 to yield downwardlyas the member 82 and the presser 72 carried. thereby are depressed to exertpressure upon the work.

The nature and'scope of the present invention having been indicated, and an em bodiment of the invention in itspreferred form having been specifically described,

what is claimed is 1. In a heel building machine, a mold comprising a pair of heel engaging jaws mounted for movement in curved paths about centers located on opposite sides of the mold from their respective jaws and cam means for moving the jaws in said curved paths.

2. In a heel building machine, a mold comprising a pair of jaws for engaging the sides of the heel mounted for movement about fixed centers forward and toward each other in curved paths and cam means for effecting such movement.

3. In a heel building machine, the combination of pivotally mounted, crossed arms interconnected for equal and opposite movement, heel engaging jaws upon said arms, a cam roll connected to one of said arms, and a cam engaging said cam roll to actuate the jaws.

4. In a machine of the class described, the combination of means for exerting pressure upon the work, said means including a presser and a member mounted to swing into actuating engagement with said presser; and means for preventing movement of said member into actuating position when the work does not conform to a predetermined standard of thickness.

5. In a machine of the class described, the combination of means for exerting pressure upon the work, said means including a presser and a power actuated member movable into and out of actuating engagement with said presser; and means for preventing operation of said power actuated member when the work does not conform to a predetermined standard of thickness.

6. In a heel building machine, the combination of a heel mold, means for securing together a pile of heel lifts placed in said mold, heel measuring devices, and means for preventing operation of the securing means when the pile of heel lifts is not of proper height.

7. In a heel building machine, the combination of a mold, a presser foot for exerting pressure upon work in the mold, a driving shaft from which power is transmitted to said presser foot, starting mechanism, a measuring slide, and means cooperating bination of a mold including a breast gage,

a presser for exerting pressure upon a heel 1n sald mold, a measuring slide having a portion adapted for engagement with saidbreast gage, and means for preventing actuation of said presser except when the heel is of substantially the same height as the breast gage. 1 e

In testimony whereof I have signed my name to this specification in the presence of two subscribingwitnesses.

e "JOHN nionannson -Witnesses;

" JAMEsO. WRIGHT,

JAMES R. HODDER.

Copies 01! this patent may be obtainedfor five cents each, by a ddress ing the Commissioner of Patents,

7 Washington, 0; v 

